English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

As of today, there exists no standard language for querying Linked Data onthe Web, where navigation across distributed data sources is a key feature. Anatural candidate seems to be SPARQL, which recently has been enhanced withnavigational capabilities thanks to the introduction of property paths (PPs).However, the semantics of SPARQL restricts the scope of navigation via PPs tosingle RDF graphs. This restriction limits the applicability of PPs on the Web.To fill this gap, in this paper we provide formal foundations for evaluatingPPs on the Web, thus contributing to the definition of a query language forLinked Data. In particular, we introduce a query semantics for PPs that couplesnavigation at the data level with navigation on the Web graph. Given thissemantics we find that for some PP-based SPARQL queries a complete evaluationon the Web is not feasible. To enable systems to identify queries that can beevaluated completely, we establish a decidable syntactic property of suchqueries.

A Context-Based Semantics for SPARQL Property Paths over the Web (Extended Version)